Oidium sp.

KW [Darwin] 16204. 采集地点: 乌克兰; Kyiv Oblast; Kievo-Sviatoshynskyi District; Boiarka railway station (N50°18' E30°17'). 采集日期: 1931年9月26日. 相关生物: Cucurbita pepo (叶片). 采集者: Morochkovsky, S.F.. 鉴定人: Morochkovski, S.F..